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Which function is the same as y=cos(2(x+pi/2))-2
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Which function is the same as y=cos(2(x+pi/2))-2

User Armen Zakaryan
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y=cos(2x+pi) - 2
y= - cos(2x) - 2
{ Since cos(x+pi) =-cos(x)}
User Kharrison
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